40pcs for M3 Rivet Nut. 40pcs Rivet Nut. 30pcs M5 Rivet Nut. 20pcs M6 Rivet Nut. 10pcs M8 Rivet Nut. 5pcs M10 Rivet Nut. Internally threaded, open ended type. Type: Flat head, Knurled body.
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